(-1/2x²y)³×(-3xy²)²
问题描述:
(-1/2x²y)³×(-3xy²)²
答
(-1/2x²y)³×(-3xy²)²
=(-1/8 x^6 y^3)*(9 x^2 y^4)
=-(9/8) x^8 y^7.